Scientist II / Sr. Scientist, Analytical and Formulations Development at Ambrx
La Jolla, CA, US
Ambrx, Inc. is a biopharmaceutical company with a mission to deliver breakthrough protein
therapeutics. Ambrx is based on a fundamental advance in protein biosynthesis that enables the
company to genetically engineer proteins with new amino acid building blocks beyond the
common twenty, enabling the biosynthesis of proteins with new physical, chemical and
pharmacological properties. At Ambrx, we are dedicated to assembling and developing an
exceptional team and a breakthrough technology to create the next generation of protein-based
Major Responsibilities:
We are currently seeking a highly motivated and innovative Ph. D level scientist to join our
Formulation and Analytics group. The primary responsibilities of the scientist include:
 In collaboration with team members, design and execute overall formulation
development strategies for Ambrx’s therapeutic proteins to support toxicology and
various clinical studies and commercial launch
 Carry out lab experiments to generate study results to support the formulation
development of the programs. These include design of study protocols, set up of the
formulation screening/stability studies, manage the development stability programs and
generate study reports
 Participate in the interaction with CMO to support the fill-finish of GMP drug product for
clinical supply. Prepare formulation report and technology transfer reports, participate in
process transfer to CMOs for fill-finish of drug product, review manufacture batch
records, and author documents for regulatory submissions
 Stay current on state-of-the-art scientific knowledge and practice in biological drug
product development. Innovatively integrate new technologies into the work stream
within the company
 Develop protocols for various stability studies including development stability study, IND
stability study, long-term stability study, and use-time compatibility study etc. in
collaboration with team members and external partners to support various programs in
early and late stage development
 Perform statistical analysis to extrapolate and predict drug substance retest date and
drug product shelf-life based on collected GMP stability data. Write interim and complete
stability study report as appropriate
 Manage the internal long-term development stability program in collaboration with team
members. Review, maintain and analyze the collected stability data.
 Author formulation development and stability sections of regulatory submissions
 Ph. D in Biochemistry, analytical chemistry, Pharmaceutics Sciences, or related fields with a
minimum of 2 years of industry experience in biologic analytical /formulation development
 Must have in-depth understanding of the biophysical and biochemical degradation pathways
for protein therapeutics in liquid formulation.
 Must have hands-on experience in formulation development of therapeutic proteins. Prior
experience with monoclonal antibodies or Bi-specific proteins is a plus, and direct
experience on ADC formulation and lyophilized formulation is highly preferred.
 Experience and knowledge in common analytical and formulation practices and procedures
are required.
 Experience with SE-HPLC, cIEF, IEX-HPLC, CE-SDS, DSC, light scattering, and HIAC
particle counting are required
 Good understanding of FDA and ICH guidelines associated with drug product development
and drug substance and drug product stability assessment are required
 Familiar with selection of container/closure systems is required.
 Experience of GMP fill-finish of protein therapeutics is highly desirable
 Must have excellent scientific writing, communication, presentation, documentation, and
organization skills.
 A team player with good people skills.